I think you are viewing the application in Ajax mode.Check out your URL (once you open the application). It might be client = ajax; (at end of the URL).
You need to install IE plugin and view it in IE plugin,
you willl find the plugin setup in Qlikview server system C:\Program Files\Qlikview\Server\Client\.. .... QvPluginsetup.exe.
Or you need to enable the link at access point so that it can be easily downloaded from user system
Go to Qlikview Enterprise managemnt console... 3 tab --- webserver-- Accesspoint--> down there will show plugin link. enable it. YOu will be able to a Download plugin label at Accepoint.
I hope this resolves your issue.